People who are not suitable for laser spot removal, there are the following kinds: 1, high blood pressure, diabetics. 2, those who take certain psychotropic drugs for a long time. 3, those who take anti-inflammatory drugs and antihypertensive drugs. 4.Pregnant women, because the treatment has different degrees of pain, theoretically can not completely exclude the potential impact on fetal development may exist. 5, light allergy, light-sensitive people and people who have recently used light-sensitive drugs (retinoids, tetracycline, etc.). 6.It is not recommended for those with chloasma on the face. 7.Systematic use of retinoids (at least 2 months after stopping use before treatment). Such patients may have a potential temporary weakening of skin repair function. If there are all these contraindications, it is recommended that you do not undergo laser spot treatment for the time being to avoid unnecessary problems. If you have had prolonged outdoor activities (such as hiking, swimming, skiing, etc.) within 2 weeks, it is recommended to have the treatment after 2 weeks, otherwise the pigment cells are too active, which will easily cause hyperpigmentation after the operation.